JEGS Performance Products 30059 Painted Long Tube Headers Painted Long Tube Headers 1-3/4" Primary 3" Collector Fits:(All w/396-454 c.i.) 68-87 2WD 68-81 1/2 & 3/4 Ton 4WD Pickups 68-87 Blazer/Jimmy 2WD 73-81 Blazer/Jimmy 4WD 73-91 Suburban 2WD 73-81 Suburban 4WD